#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <cstring>
using namespace std;

int n, box[100010];

int main() {
    freopen("duel.in", "r", stdin);
    freopen("duel.out", "w", stdout);
    cin >> n;
    int ans = -1;
    for (int i = 1; i <= n; i++) {
        int a;
        cin >> a;
        box[a]++;
        ans = max(ans, box[a]);
    }
    cout << ans << endl;
    return 0;
}
